//进行异步操作
import {
    RECEIVE_ADDRESS,
    RECEIVE_CATEGORYS,
    RECEIVE_SHOPS,
    RECEIVE_USER_INFO,
    RESET_USER_INFO,
    RECEIVE_RATINGS,
    RECEIVE_INFO,
    RECEIVE_GOODS,
    INCREMENT_FOOD_COUNT,
    DECREMENT_FOOD_COUNT,
    CLEAR_CART,
    RECEIVE_SECARCH_SHOPS
} from './mutation-types'

import {
    reqAddress,
    reqFoodcategorys,
    reqLogout,
    reqShopList,
    reqUserInfo,
    reqShopGoods,
    reqShopInfo,
    reqShopRatings,
    reqSearchShops
} from "../api";

export default {
    // 异步获取地址
    async getAddress({commit, state}) {
        const geohash = state.latitude + ',' + state.longitude //拼接路径
        const result = await reqAddress(geohash)
        //提交一个mutaion
        if (result.code === 0) {
            const address = result.data //把数据保存到address中
            commit(RECEIVE_ADDRESS, {address}) //调用常量，把数据保存到常量中
        }
    },
    // 异步获取食品分类列表
    async getCategorys({commit}) {
        const result = await reqFoodcategorys()
        //提交一个mutaion
        if (result.code === 0) {
            const categorys = result.data
            commit(RECEIVE_CATEGORYS, {categorys})
        }
    },
    // 异步获取商家列表
    async getShops({commit, state}) {
        const {latitude, longitude} = state
        const result = await reqShopList(latitude, longitude)
        //提交一个mutaion
        if (result.code === 0) {
            const shops = result.data
            commit(RECEIVE_SHOPS, {shops})
        }
    },
    //同步记录用户信息
    recordUser({commit}, userInfo) {
        commit(RECEIVE_USER_INFO, {userInfo})
    },
    // 异步获取用户信息
    async getUserInfo({commit}) {
        const result = await reqUserInfo()
        if (result.code === 0) {
            const userInfo = result.data
            commit(RECEIVE_USER_INFO, {userInfo})
        }
    },
    // 异步登出
    async logout({commit}) {
        const result = await reqLogout()
        if (result.code === 0) {
            commit(RESET_USER_INFO)
        }
    },
    // 异步获取商家信息
    async getShopInfo({commit}) {
        const result = await reqShopInfo()
        if (result.code === 0) {
            const info = result.data
            commit(RECEIVE_INFO, {info})
        }
    },
// 异步获取商家评价列表
    async getShopRatings({commit}, callback) {
        const result = await reqShopRatings()
        if (result.code === 0) {
            const ratings = result.data
            commit(RECEIVE_RATINGS, {ratings})
            callback && callback()
        }
    },
    // 异步获取商家商品列表
    async getShopGoods({commit}, callback) {
        const result = await reqShopGoods()
        if (result.code === 0) {
            const goods = result.data
            commit(RECEIVE_GOODS, {goods})
            callback && callback() //等于if(callback){callback()} 如果函数存在，则调用该函数
        }
    },
    // 同步更新food中的count值
    updateFoodCount({commit}, {isAdd, food}) {
        if (!isAdd) {
            commit(INCREMENT_FOOD_COUNT, {food})
        } else {
            commit(DECREMENT_FOOD_COUNT, {food})
        }
    },
    //同步清空购物车
    clearCart({commit}) {
        commit(CLEAR_CART)
    },
    //异步获取搜索到的商家列表
    async searchShops({commit, state}, keyword) {
        const geohash = state.latitude + ',' + state.longitude
        const result = await reqSearchShops(geohash, keyword)
        if (result.code === 0) {
            const searchShops = result.data
            commit(RECEIVE_SECARCH_SHOPS, {searchShops})
        }
    }
}